3 years ago

Which of the following is a large-scale, slow-moving natural change?

1 answer:

7 0

A) glaciation because the block of ice slowly moves through the ocean and can destroy the icy habitat by its strong weight.

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Give the chemical formulas for (a) silicon tetrabromide, (b) disulfur dichloride, (c) diphosphorus hexaoxide.

sdas [7]

Answer:

(a)

$SiBr_4$

(b)

$S_2Cl_2$

(c)

$P_2O_6$

Explanation:

(a)

The given compound is silicon tetrabromide. It means that 1 silicon and four bromine atoms are combined to form the molecule.

The chemical formula of silicon tetrabromide is $SiBr_4$

(b)

The given compound is disulfur dichloride. It means that 2 sulfur atoms and 2 chlorine atoms are combined to form the molecule.

The chemical formula of disulfur dichloride is $S_2Cl_2$

(c)

The given compound is diphosphorus hexaoxide. It means that 2 phosphorus atoms and 6 oxygen atoms are combined to form the molecule.

The chemical formula of diphosphorus hexaoxide is $P_2O_6$

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3 years ago

A cheetah has been clocked at 112 km/h over a 100-m distance. What is this speed in m/s?

Serhud [2]

M/sec = 112 km / 1 hr / 1 min / 1000 meters
hr / 60 min / 60 sec / 1 km

So the answer is = 31.1 meters/sec

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3 years ago

What is the pH of a 1.9 M solution of HClO4?

Sliva [168]

The compound HClO4, when placed in water, will dissociate into the ions, H+ and ClO4-. Therefore, the 2.0 M solution will also form 2.0 M H+. The pH is calculated through the equation,
pH = -log[H+]
Substituting,
pH = -log[2] = -0.3
Thus, the pH of the solution is -0.3.

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2 years ago

To determine the specific heat capacity of copper, Alyssa performed an investigation by which she dropped a heated piece of copp

user100 [1]

Answer:

0.446

Explanation:

ccu = 3035.655 / 104 g x (98.9 - 33.5) = 0.446 J / g 0 C

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2 years ago

Determining what it is you want to know:

Lynna [10]

Am so pro let it goo let it goooo

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2 years ago